Designed with high-efficiency solar panels and fast USB charging, this fan hat supports two flexible power sources to keep you refreshed anytime, anywhere. It runs continuously under direct sunlight for eco-friendly outdoor cooling, while the quick USB charge ensures reliable use indoors or at night. The smart dual-power system delivers nonstop cooling performance, so you never have to worry about low battery ruining your outdoor fun. Fan head can be freely adjusted up to 180° to direct refreshing airflow precisely to your face, neck and forehead. Combined with a wide-brimmed cap that effectively blocks harsh UV rays and strong sunlight, it provides double protection from heat and sunburn. Enjoy superior comfort and full-coverage shielding even during long hours under the scorching summer sun. Powered by an upgraded premium motor, this built-in fan features 3 adjustable wind speeds to match your personal comfort level. It produces strong, consistent airflow while operating at an ultra-quiet volume, free from loud buzzing or annoying noise. Perfect for golfing, fishing, hiking, chatting and other quiet outdoor activities without any disturbance. Made of high-quality lightweight, breathable and moisture-wicking material, the cap effectively absorbs sweat and keeps your head dry and cool all day long. The adjustable Velcro strap ensures a secure and flexible fit for most head sizes, offering stable wearing comfort even during extended outdoor sports and labor work.